摘要 |
A display device with a plurality of display portions; each display portion being a television or areas of a screen of a television. The display device can be controlled by a control device such as a portable device which includes a touch-sensitive display unit and a control unit. The touch-sensitive display unit displays a graphic user interface (GUI) corresponding to the display device. The control unit produces operation parameter(s) according to touch operation(s) on the touch-sensitive display unit and transmits the operation parameter(s) to the display device, thereby enabling the display device to modify image(s) actually displayed, by changing the position or the size of the image(s) actually displayed, according to the operation parameter(s). |